Allow float line nums in exam tool LONG*_INPUTS

exam-write/README.md

@@ -180,9 +180,15 @@ For short / long answer questions, you must provide exactly one input statement
 The `type` can be `SHORT_ANSWER`, `SHORT_CODE_ANSWER`, `LONG_ANSWER`, or `LONG_CODE_ANSWER`. `CODE`
 means that the font will be monospaced and tab will work to indent text typed in a `LONG_CODE_ANSWER`.
 For short answer questions, the `content` can optionally be a Javascript regular expression that matches valid 
-inputs, though invalid inputs can still be saved by the user. For long answer questions, the `content`
-can optionally be an integer representing the number of lines provided in the input field before the user
-has to start scrolling. This also affects the height of the box in the generated PDF in a similar way.
+inputs, though invalid inputs can still be saved by the user.
+
+For long answer questions, the `content` can optionally be a number representing the number of lines provided in the input field before the user
+has to start scrolling. This also affects the height of the box in the generated PDF in a similar way. (Floating point values are no recommended, but are supported.)
+
+```
+# INPUT LONG_ANSWER 3
+# INPUT LONG_CODE_ANSWER 4
+```
 
 ## Solution and Note Syntax
 

examtool/examtool/api/convert.py

@@ -204,9 +204,9 @@ def parse_input_lines(lines):
         elif directive == "SHORT_CODE_ANSWER":
             return "short_code_answer", rest.strip(), None
         try:
-            num_lines = int(rest or "10")
+            num_lines = float(rest or "10")
         except TypeError:
-            raise SyntaxError("Expected integer as option for {}".format(directive))
+            raise SyntaxError("Expected number as option for {}".format(directive))
         if directive == "LONG_ANSWER":
             return "long_answer", num_lines, None
         elif directive == "LONG_CODE_ANSWER":